Magnetorheological polishing fluid strong mixed flow field dispersion device and method

Abstract

The invention discloses a rotary ultrasonic vibration dispersion system and a magnetorheological polishing fluid strong mixed flow field dispersion device and method by utilizing the rotary ultrasonicvibration dispersion system. A rotary motion of a conical inner cylinder and a rotary motion of the rotary ultrasonic vibration dispersion system form a mixed flow field of dispersive magnetorheological polishing fluid granules, and flow field circulation of the magnetorheological polishing fluid in the device is ensured; meanwhile, the mixed flow field of the magnetorheological polishing fluid is effectively enhanced by an ultrasound cavitation effect produced by the rotary ultrasonic vibration dispersion system; agglomerated magnetic particles, non-magnetic abrasive particles and other small-particle-size suspension particles can be uniformly mixed and dispersed by cavitation bubbles and a series of high-temperature, high-pressure, shock wave, micro-jet and other effects produced by cavitation bubble collapse, or the settled particles are dispersed again, so that the reliability of the magnetorheological polishing fluid in the preparation and application process is improved.

Description

Technical field [0001] The present invention relates to the technical field of precision and ultra-precision processing, in particular to a rotating ultrasonic vibration dispersion system and a device and method for dispersing a strong mixing flow field of a magnetorheological polishing liquid by using a rotating ultrasonic vibration dispersion system. Background technique [0002] Magnetorheological polishing fluid is a suspension formed by mixing magnetic particles, non-magnetic abrasives, base carrier fluid and various additives. Magnetorheological polishing fluid is similar to Newtonian fluid when no magnetic field is added, but exhibits the characteristics of high viscosity and low fluidity Bingham fluid when a magnetic field is applied. It is especially suitable for precision, trace, controllable and deterministic removal of key industrial parts. . At present, the profile accuracy obtained by magnetorheological polishing can reach tens of nanometers or less, and its surfac...

AI Technical Summary

Problems solved by technology

However, ultrasonic vibrating rods generally have the problems of small radiation area, uneven energy radiation, and small amount of particle stirring.

Therefore, for the large-scale production of industrial magnetorheological polishing fluid, purely relying on mixing and stirring machinery and ultrasonic stirring technology is not enough to complete the mixing and uniform dispersion of magnetic particles, non-magnetic abrasives and other particles in the magnetorheological polishing fluid.

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